package com.ips.interview.api;

/**
 * 
 * @author IPS
 * 
 * This API manage the business logic to process and request information
 * regarding the Sellers and Sales.
 *
 */
public interface BaseSales
{
    /**
     * Process the sale from specific seller.
     * 
     * @param aSellerName
     * @param aQty
     */
    void doProcess(String aSellerName, Integer aQty);

    /**
     * Get the best seller's name, only if this is unique, otherwise must return null.
     * 
     * @return String Name of the Better Seller
     */
    String getTopSeller();

}

